Bases and foundations of buildings under reconstruction

목차 (Table of Contents)

• CONTENTS
• Preface = ⅲ
• 1. Reasons for Strengthening Bases and Foundations of Buildings = 1
• 1. Deformations of In－service Buildings = 1
• 2. Load Increase Due to Building Additional Storey and Reconstruction = 19
• 3. Standardising Stress Intensity on Foundation Soils = 22
• 2. Condition of Bases and Foundations of Buildings under Reconstruction = 34
• 1. Effect of Service Period of Buildings on Deterioration of Foundations = 34
• 2. Design Parameters of Foundations = 38
• 3. Changes in Stress on Foundation Soils after Reconstruction of Buildings = 43
• 4. Utilisation of Reserve Bearing Capacity of Foundations in Reconstructions = 48
• 5. Experience in Prescribing Permissible Stress on Foundation Soils after Reconstruction = 52
• 3. Behavioural Features of Foundations of In－Service Buildings = 55
• 1. Nature of Soil Reinforcement = 55
• 2. Depth of Compressible Layer of Base = 58
• 3. Variation in Moisture Regime of Soil and Water Table = 70
• 4. Consolidation of Foundation Soils under Load = 73
• 5. Effect of Long－term Loads on Mechanical Properties of Foundation Soils = 79
• 4. Engineering－Geological Investigations and Inspections of Foundations of Reconstructed Buildings = 86
• 1. Engineering－Geological Investigations = 86
• 2. Investigation of Foundation Soils = 93
• 3. Inspection of Foundations = 100
• 4. Summary of Technical Feasibility of Reconstructing Buildings with Increased Loads = 106
• 5. Designing Bases and Foundations of Buildings under Reconstruction = 108
• 1. Sequence of Works while Designing Bases and Foundations = 108
• 2. Summation of Loads for Computation of Foundations = 110
• 3. Determination of Allowable Stress on Foundation Soils Compressed under Long－term Loading Conditions = 112
• 4. Verification of Foundation Strength = 115
• 5. Design of Bases According to Ultimate State = 119
• 6. Reinforcement of Foundations on Natural Base = 127
• 1. Strengthening Foundations = 127
• 2. Increasing Foundation Bearing Area = 132
• 3. Deepening Foundations： Underpinning Columns of a New Foundation = 138
• 4. Construction of Foundation Mats under a Building = 140
• 5. Introduction of Additional Supports = 142
• 7. Utilization of Piles for Reinforcing Foundations = 144
• 1. Behaviour of Cast－in－situ Piles under the Building = 144
• 2. Reinforcing Foundations with Driven Piles = 149
• 3. Bored Jet Grout Piles = 164
• 4. Slot Foundations = 169
• 5. Partial Replacement of Pile Foundations = 171
• 8. Stabilisation of Soils = 173
• 1. Cementation = 173
• 2. Silicification = 174
• 3. Electrochemical Stabilisation = 176
• 4. Thermal Stabilisation = 178
• 5. Strengthening and Lifting Deformed Foundations by High－pressure Jet Grouting = 179
• 6. Jet Grouting： Applications = 181
• 9. Special Features of Construction Operations Related to Substructure Works to be Carried out under Reconstruction = 187
• 1. Effective Methods of Destroying Old Foundations = 187
• 2. Methods for Restoration of Waterproofing = 195
• 3. Installation of Piles and Sheet Piles Adjacent to Structures in Service = 201
• 4. Deepening Underground Facilities of Buildings = 210
• 5. Construction Works for Lowering Water Table and for Water Drainage = 217
• 6. Safety Regulations in Reconstruction Works = 223
• Conclusions = 226
• References = 231